To think of [the pyramids] as machines whether it’s a power plant, weapon, refining uranium or to fertilize the Nile valley .. I am not convinced by any of these! .. I’m not sure we really know what they were. I don’t know. I am a Geologist .. I’d suspect that their initial purpose had something to do probably initially with protecting people from solar outbursts at the end of the last ice age!
Robert Schoch, 01:18:00, Forum Borealis, Youtube Link.